@moigagoo That's one of the things I'm working on right now. Hopefully the autocomplete will be better in the next release.

@manicmaniac Thanks! And unfortunately, no Vim syntax plugin right now. I wrote a Pygments highlighter (for Sphinx) and a tmLanguage highlighter (for SublimeText or TextMate), but those are all of the highlighting packages I've written so far. If you wanted to adapt one of those to Vim, that'd be great, though! I'd recommend using an existing python highlighter as a base, and making changes similar to what I did with sublime-coconut (https://github.com/evhub/sublime-coconut).

@schodge Hy is a Lisp dialect—Coconut is a strict superset of Python. Coconut extends Python with functional programming features that interoperate with and look like existing Python features. Hy completely replaces all of Python's syntax with its own Lisp syntax. Furthermore, Coconut and Hy have very different features—Coconut's functional programming tools are more Haskell/F#/Elixir style, while Hy's are more Scheme/Racket style. Finally, Coconut compiles straight to Python, which means running it doesn't require any extra libraries like Hy does.